Chicken breast (cooked) vs Egg (hard-boiled)
Per 100 g, chicken breast carries far more protein and less fat; a hard-boiled egg has less protein but brings the yolk’s vitamins and healthy fats. Chicken for lean protein volume, eggs for a whole-food package of protein plus micronutrients.
Chicken breast (cooked) and Egg (hard-boiled), per 100 g and per portion. A gap means USDA has no value for it — not zero.
| Chicken breast (cooked) · per 100 g | Egg (hard-boiled) · per 100 g | |
|---|---|---|
| Calories | 165 | 155 |
| Protein | 31 g | 12.6 g |
| Fat | 3.6 g | 10.6 g |
| Carbs | 0 g | 1.1 g |
| Fiber | 0 g | 0 g |
| Sugars | 0 g | 1.1 g |
| Sodium | 74 mg | 124 mg |
| Vitamins & minerals — where both carry data | ||
| Calcium | 15 mg | 50 mg |
| Folate | 4 µg | 44 µg |
| Iron | 1 mg | 1.2 mg |
| Magnesium | 29 mg | 10 mg |
| Niacin | 13.7 mg | 0.1 mg |
| Phosphorus | 228 mg | 172 mg |
| Potassium | 256 mg | 126 mg |
| Riboflavin | 0.1 mg | 0.5 mg |
| Thiamin | 0.1 mg | 0.1 mg |
| Vitamin A | 6 µg | 149 µg |
| Vitamin B12 | 0.3 µg | 1.1 µg |
| Vitamin B6 | 0.6 mg | 0.1 mg |
| Vitamin C | 0 mg | 0 mg |
| Vitamin D | 0.1 µg | 2.2 µg |
| Vitamin E | 0.3 mg | 1 mg |
| Vitamin K | 0.3 µg | 0.3 µg |
| Zinc | 1 mg | 1.1 mg |
Generic USDA foods (not brands), so both carry micronutrients. Numbers are per 100 g unless the portion toggle is on. USDA FoodData Central, as of 2026-08-12.
Is Chicken breast (cooked) or Egg (hard-boiled) better?
Neither is “better” on its own — it depends what you want from it. The table shows where each is higher; the short answer says when each one fits. Compare on the same basis (per 100 g) and pick for your dish and your goal.
How were these numbers worked out?
Straight from USDA FoodData Central for the generic form of each food, per 100 g. We show the portion view too, but portion sizes differ between foods, so per 100 g is the fair comparison.
Why does one column say “no data”?
Because USDA has no value for that nutrient in that food — so we leave it blank rather than print a 0 that would read as “none”. A real zero from USDA still shows as 0.